package testplan.servlets;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import testplan.Log;
import testplan.entities.User;

import com.google.inject.Singleton;

@Singleton
public class CheckLoginFilter implements Filter 
{

	@Override
	public void destroy() 
	{
	}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain) throws IOException, ServletException 
	{
		final User user = (User) ((HttpServletRequest) request).getSession().getAttribute("user");
		if(user == null)
		{
			Log.ACCESS.info("not logged in");
			((HttpServletResponse) response).sendError(HttpServletResponse.SC_UNAUTHORIZED);
		}
		else
		{
			Log.ACCESS.info(user.getEmail() + " is logged in.");
			filterChain.doFilter(request, response);
		}
	}

	@Override
	public void init(FilterConfig arg0) throws ServletException 
	{
	}

}
